Title:
SINTERED COMPACT USED FOR MACHINING CHEMICALLY REACTIVE MATERIAL
Document Type and Number:
Japanese Patent JP2004160637
Kind Code:
A
Abstract:
To improve efficiency of a cubic boron nitride superabrasive tool.
A sintered cubic boron nitride (cBN) compact for use in a tool is composed of about 60 to 80 volume % of cBN having a volumetric average particle size of about 3 to 6 μm and about 40 to 20 volume % of a ceramic binder phase. The ceramic binder is composed of about 20 to 60 volume % of one or more of a carbide, nitride, or boride of a Group IVB or VIB metal, and about 40 to 80 volume % of one or more of carbides, nitrides, borides, or oxides of aluminum. The cBN compact additionally contains about 3 to 15 weight % of tungsten. The cBN compacts are useful in machining chemically reactive parts such as iron, and especially useful in machining powder metal parts.
Inventors:
DOLE STEPHEN LEE
SCURLOCK ROBERT DEAN
SCURLOCK ROBERT DEAN
Application Number:
JP2003180551A
Publication Date:
June 10, 2004
Filing Date:
June 25, 2003
Export Citation:
Assignee:
GEN ELECTRIC
International Classes:
B23B51/00; B22F3/02; B23B27/14; B23B27/20; C04B35/583; C04B35/5831; C22C1/05; C22C26/00; C22C29/16; (IPC1-7): B23B27/14; B23B27/20; B23B51/00; C04B35/583; C22C1/05
Domestic Patent References:
| JPH02236253A | 1990-09-19 | |||
| JPS5654278A | 1981-05-14 | |||
| JPH0881270A | 1996-03-26 | |||
| JPH02232336A | 1990-09-14 |
Attorney, Agent or Firm:
Kenichi Matsumoto
Hirokazu Ogura
Nobukazu Ito
Hirokazu Ogura
Nobukazu Ito